Came across this in the process of looking for something else.* For anyone interested, here is a description of the properties of Marvel Mystery Oil--- including the ingredients---*that is about as official as it's going to get, seeing as how MMO is today owned by Turtle Wax.
Innovative Detailing & Car Care Products | Turtle Wax
Keep in mind that MMO was created in 1923, long before low sulphur diesel fuel was even a concept. Its purpose was to promote clean carburetors and fuel systems, which was a not-insignificant problem back then due to the inconsistent refining processes used. Conceived as an engine system cleaner (solvent) its purpose seems to have morphed more recently*into that of a fuel lubricity additive, which may explain its poor showing in the lubricity comparison quoted in a previous post if the solvent ingredients have remained unchanged. Promotional material about the product implies that it's "mysterious" formula is still the same.
So it seems a bit odd to me that one would want to use a chemical mixture that was designed to remove petroleum-based sludge and deposits as something to promote the the lubrication of components by petroleum-based fuel. You'd think it would be thinning out and removing the lubrication properties of the fuel, not adding to them. But I'm no petrochemist so perhaps my logic is off the mark here.
-- Edited by Marin on Friday 25th of June 2010 07:38:23 PM
Innovative Detailing & Car Care Products | Turtle Wax
Keep in mind that MMO was created in 1923, long before low sulphur diesel fuel was even a concept. Its purpose was to promote clean carburetors and fuel systems, which was a not-insignificant problem back then due to the inconsistent refining processes used. Conceived as an engine system cleaner (solvent) its purpose seems to have morphed more recently*into that of a fuel lubricity additive, which may explain its poor showing in the lubricity comparison quoted in a previous post if the solvent ingredients have remained unchanged. Promotional material about the product implies that it's "mysterious" formula is still the same.
So it seems a bit odd to me that one would want to use a chemical mixture that was designed to remove petroleum-based sludge and deposits as something to promote the the lubrication of components by petroleum-based fuel. You'd think it would be thinning out and removing the lubrication properties of the fuel, not adding to them. But I'm no petrochemist so perhaps my logic is off the mark here.
-- Edited by Marin on Friday 25th of June 2010 07:38:23 PM